LCCS Biology Lab. Club

LCCS Biology Lab. Club This is Lideta Catholic Cathedral's Biology Labratory Club page.

07/06/2020

LIDETA CATHOLIC CATHEDRAL SCHOOL[LCCS BIOTECHNOLOGY CLUB] PRESENTED YOU THIS EXAM FOR SELF EVALUATION PURPOSE.

THE AIM OF POSTING THIS EXAM IS JUST TO CREATE ACCESS TO THOSE STUDENTS WHO ARE MEMBERS OF THE CLUB. WE HOPE IT WILL BE SOMHOW HELPFUL FOR GRADE 9 STUDENTS WHO CAN NOT FIND SUCH LEARNING MATERIALS DUE TO COVID-19 PANDEMIC. ENJOY IT.
(PLEASE, DO NOT FORGET SHARING IT TO YOUR FERIENDS)

Lideta Catholic Cathedral School Name ____________________
Biology Period I Final Exam Sec.______ Roll No. _________
Grade: 9 Date: Hidar 6, 2006 E.C
Time Allowed: 60 min

I- Write “True” for correct statement and “False” for incorrect one

1. A solution whose solute concentraion is higher than the cell content is said to be
hypotonic to the cell.

The random movement of molecules or particles from a region of higher concentration to lower concentration is known as diffusion.

Staining is done in light microscope using heavy metal.

Maintaining constant and steady state of an organism is known as Homeostasis.
If the solution outside the cell is much more concentrated than the cell content,
then the solution is said to be hypertonic to the cell.

The membrane of mitochondria that increase surface area for the activity of enzyme
is matrix.

Plant cell lack centrosome so, they can’t proceed cell division.
Rough endoplasmic reticulum has got ribosome and this help protein synthesis.

Green pigment found in all cell enhance the process of photosynthesis.

Golgi body is responsible for collecting, concentrating, and packing cell
materials prior to transportation.

Part – II Match the items form column “B” to column “A”

A B

11. Cell membrane A. The site of energy release
12. Epithelial cell B. “Suicide” bag / remove damaged cell
13. Nerve cell C. Provide protection & support
14. Lysosome D. Control the movement of material and act as barrier
15. Cell wall E. The site of protein synthesis
16. Ribosomes

16/05/2020

**FILMS /CONTAGION(10 Things of Contagion Film Associated with COVID-19 Pandemic**
I) China as a place origion(Wuhan city & Hubei Province )
II) On set of ds (Zoonosis)
III) Ds type is Viral( Causative Agent & Phatogenesis)
IV) Mode of transmission of the ds.
V) Crowd of people searching for PPE & other related
VI) Estimation of Life toils (28 Million )
VII) S/S similarities
VIII) Hand washing challenge as main means effective prevention.
IX) Black WHO General Director
X) Vaccine route (Nasal Adminidtration , Controlling,Elimination & Eradication)

26/03/2020

is IMMUNITY (Is the capability of MULTICELLUAR organisms to resist harmful MICROORGANISMS from entering it.
It is studied under IMMUNOLOGY.
2 components =>
*NONSPECIFIC acts as barrier or eliminator to a wide range pathogens
irrespective of their genic make- up.
*SPECIFIC adapt themselves to each new disease encoutered & can generate pathogic -specific immunity.
===> IMMUNITY 2 Major Divisions
1) ADAPTIVE{can be HUMORAL or CELL--MIDATED
*HU[mediated by antibodies.ACTIVE when the organism generates its antibodies by itself while PASSIVE when antibody is transfered.]
*CM [involve T-Lyphocyte. ACTIVE when its T-cell is activated while PASSIVE when T-cells is activated by another T-cell that comes from another organism.]

2 subdivisions
1.1 NATURAL => 2 further subdivisions
1 1.1 PASSIVE............ from infection
1.1.2 ACTIVE ..........from Maternal

1.2 ARTIFICIAL => ............2 further subdivisions
1.2 1 PASSIVE = ...........from antibody transfer
1.2.2 ACTIVE =............... from Immunization campaign

2) INATE{Exists by VIRTUE of an organism constitution, that is its genetic make-up ,without external stimulation ,or PREVIOUS infection.
Depending on the DEGREE OF RESISTANCE
2.1 SPECIFIC = a degree of resistance to a particular organism only.As a result ,some race,some individual do not suffer from certain infectious diseases.
2.2 NONSPECIFIC = a degree of resitance to all infection is general.}

04/02/2020

፨Human Genome Project/HGP Vs Corona Virus outbreak in China,currently killing more than 300 people in China. why ?
(Let us sespect
*Genome is the complete genetic information either DNA or in RNA of the organism.
*HGP was the International research effort to determine the sequence of DNA of the entire human genome.

Here is the trend how school feeding proceed in many nations of the world .(These important points are taken from Getach...
02/12/2019

Here is the trend how school feeding proceed in many nations of the world .(These important points are taken from Getachew .T.

Prolonged Effect of Malnutrition in Children in specific and in the Country in general.
16/10/2019

Prolonged Effect of Malnutrition in Children in specific and in the Country in general.

09/10/2019

How much this theory is incorporated in our Educational Development Road Map which will be implemented starting 2012 E.C academic year ?

16/06/2019

፨፨፨"በኛ ጊዜ ነው እንዴ ኩረጃ የሚከለከለው? "፨፨፨ አሉ አሉ የአገር አቀፍ ተፈታኝ ተማሪዎች ።

በመጀመሪያ መልካም እድል ይግጠማችሁ!!! እንላለል።

የሰሞኑ የ10ኛ እና የ12ኛ ክፍል አገር አቀፍ የፈተና ወቅትን ተከትሎ የኢንተርኔት እና የስልክ አገልግሎት ማቋረጥ ላይ የነበረውን ሀሳብ ላይ እንነጋገር እስቲ ።
ግን ለምን እንዲህ አሉ ? ይህ ነገርን እንደ ቀልድ መወሰድ ያለበት አይመስለንም።የችግሩ ምንጭን ከት.ት ስርአቱ እና ከፖለቲካ ስርአቱ ጋር አገናኝቶ በጥንቃቄ መፈተሽ ተገቢ ይመስለናል።
ዞሮ ዞሮ ዋናው ጥያቄው የሞራል ልዕልና/Moral value ጉዳይ ይመስለናል። እንደ ምሳሌ በልደታ ካቶሊክ ካቴድራል ት.ቤት/LCCS በፈተና ሰሞን ኩረጃን ለመከላከል ተብሎ በሚደረገው ጥረት ላይ መምህራን ከተማሪዎቻቸው ከሚገጥማቸው ሙግት መሳይ ነገሮች መካከል አንዱ "ቲቸር አንተ ተማሪ እያለህ ፈተና ኮርጀህ አታውቅም ወይ?" ነው።ኩረጃን እንደ መብት መቁጠር እንዴት ይቻላል ? እንደ መብት ከታየ እኮ ድሮ ድሮ የ12ኛ ክፍል ተማሪዎች በአንድ ወይም በሁለት ካርድ ወይም የአካዳሚያዊ አመት /Acadamic Year ከመደበኛው የዩኒቨርሲቲ የመግቢያ ነጥብ ተፈትነው ማምጣት ያለባቸው 3.4 ነው የተባለው ነጥብ 3.6 ሲሆን እንደገና በቀጣዩ አመት 3.8 ሲሆን እንዲያውም ይባስ ብሎ 4 ነጥብ አምጥተውም ዩኒቨርስቲ አትገቡም የተባለበት ወቅትም ነበረ። እስቲ አስቡት ይህንን ጉድ የወረደባቸው የቀድሞ አገር አቀፍ ተፈታኝ ተማሪዎች።
"በኛ ጊዜ ኢንተርኔት ለምን ይዘጋል ?" ብሎ እንደ መብት መጠየቅ ማለት ለፈተና ያለንን የራስ መተማመን ደረጃ ሳይሆን በኢንተርኔትና በስልክ ወይም በኩረጃ ተማምኖ ወደ ፈተና ክፍል መምጣት ያስመስላል። መንግስት እንዳለው በቀን ቢያንስ 4.5 ቢሊዮን ዶላር/135 ቢሊዮን ብር ያጣል ።እስኪ አስቡት የ10ኛ እና የ12ኛ ክፍል ፈተና እስኪጠናቀቅ በ7 ቀን የሚያጣውን 31.5 ቢሊዮን ዶላር/ 946 ቢሊዮን ብር ። ጥሬ ሀቁ ታዲያ እንዲ እየሆነ የሚመለከታቸው የመንግስት አካላት በጉዳዩ ላይ ሲጠየቁ ለምሳሌ እንደ ኢትዮቴሌኮም " እኔን አይመለከተኝም ት.ት ሚኒስቴርን ጠይቁት" ት.ት ሚኒስቴር በበኩሉ ሲጠየቅ "እኔን አይመለከተኝም ኢትዮቴሌኮምን ጠይቁ " ምን አመጣው ? ግልፅ በሆነ ቋንቋ የኢንተርኔት አገልግሎቱን የዘጋሁት ፈተናው እስኪጠናቀቅ ድረስ ነው አይልም ? ምን አስቦካው ? በነገራችን ላይ የመምህሩም የሞራልና የስብእና ደረጃ የት እንደደረሰ የሚያሳይም ጉዳዮች አሉ። እንደ ማሳያ ሲቀርቡ ከነበሩት
1) ከዋናው ወይም ከማዕከል የፈተና ዝግጅት ተቋም የወጣ ነው የተባለው በ4 የ10ኛ ክፍል ተፈታኞች ተማሪዎች ላይ የተያዘው የፈተና መልስ
2) ፈታኞች ሆነ ብለው ተማሪዎች እንዲኮራረጁ ያደርጉ ነበር ወዘተ።

መደምደሚያ ሊሆን የሚችለው ታዲያ የሞራል ልዕልና መቀነስ ወይም መሞቱ ይመስላል።ይህ ካልሆነ ምን ሊሆን ይችላል ?
በዚህ ጉዳይ ላይ ሳናውቅ በስህተት ወይም በድፍረት ካጠፋን ለመታረም ዝግጁ ነን ።ታዲያ በጨዋ የኢትዮጵያዊ ባህል ይሁን።

???Batch LCSS students .
07/06/2019

???Batch LCSS students .

31/05/2019

፨፨፨THEORY OF MULTIPLE INTELLIGENCES ፨፨፨

Differentiates human abilities into specific 'modalities', rather than seeing intelligence as dominated by a single general ability.Howard Gardner Propsed this Model in his book in 1983 "Fame of Mind" :The theory of Multiple Intelligences .As a theory intelligence 'modality' should fillfuled 8 Abilties =
*Interpersonal/Senesitivity to others' feelings,moods ,temperaments ,motivations & ability of cooperative in group work.
*Intrapersonal/Introspective or self reflective capacity of one's streangth & weakness
*Naturalistic/Exploration of 'funa' & 'flora' in natural environment in Biological science
*Logic/Mathematics
*Kinestic/Athletes,Dancers,Muscians Actors,Soldiers & Builders.
*Verbal/Language
*Visual/Spatial
*Rhythmic/Musical

25/03/2019

Problem Solving Skill & Its basic stepes

* Definition = [Is the act of
Defining the Problem
Determining the Cause
Identifying Alternatives for a solution Prioritizing Alternatives for a solution Selecting Alternatives for a solution Implementing a solution
* Steps = [4 basic steps & their Xies ፦
1) Definining the problem[Identifying Fact from Opinion,Specifying Underlying Cause ,Consult all Factions
2) Generating New ideas or Alternative solutions
3) Selecting & Evaluating an Alternative
4) Implementing & Evaluating the Solution

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